Home / 3,612.32-4,987.15-2,287.16

Finding the Fourth Proportional to 3,612.32, 4,987.15 and 2,287.16

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Solution

The fourth proportional to 3,612.32, 4,987.15 and 2,287.16 is: 3,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.32 : 4,987.15 = 2,287.16 : x
  2. Step 2: Convert to fraction form
    3,612.32/4,987.15 = 2,287.16/x
  3. Step 3: Cross multiply
    3,612.32x = 4,987.15 × 2,287.16
  4. Step 4: Simplify right side
    3,612.32x = 11,406,409.99
  5. Step 5: Solve for x
    x = 11,406,409.99/3,612.32
  6. Step 6: Final answer
    x = 3,157.64

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.